Hadron electromagnetic mass differences and a prediction of B+-B0

Lai Him Chan, Louisiana State University


It is proposed that the dynamical contribution to the hadron electromagnetic mass difference induced by the splitting of the up and down quark masses can be extracted phenomenologically from the quark masses by interpolation, in accordance with general QCD assumptions. The results are consistent with all observed electromagnetic mass differences. The model-independent prediction B0-B+=2.30.3 MeV will serve as a crucial test for these assumptions. A useful mass formula for the s-wave hadron ground states is also presented. © 1983 The American Physical Society.